DAC960 at 2.5.50
Quoted 11 lines
Samium Gromoff...
Quoted 5 lines
Quoted 4 lines
<[email protected]>
[PATCH] update to OSDL DAC960 driverIts not perfect but it works
is it supposed to blow my data, or is it relatively safe to use?
There have been a few poeple using this patch for about 5 versions of 2.5 so far. I haven't done heavy testing myself, just booting and doing some other testing of modules and drivers. I am running the DAC960 on my root/boot filesystem and haven't seen any problems yet.
thank you. i`ll join the 2.5 DAC user crowd soon then :-)
---
regards,
Samium Gromoff
_____________________________________
Let me know if you find any problems at all. I'll try to address them.
I think the biggest "imperfection" is just the coding style of the whole driver. I might submit some patches over time to clean up coding style.
The next problem is that it doesn't handle media errors yet. If you have a read or write failure because a sector on your disk is bad, it fails the entire read or write. With all the coalescing of requests that the block layer does, this might fail ALL of a really large transfer just because one sector is bad.
I'm working on a patch that retries failures section at a time, so that the failure will be more closely limited to the sector that is bad.
Quoted 23 lines · Samium Gromoff
Quoted 11 lines
Samium Gromoff...
Quoted 5 lines
Quoted 4 lines
<[email protected]>
[PATCH] update to OSDL DAC960 driverIts not perfect but it works
is it supposed to blow my data, or is it relatively safe to use?
There have been a few poeple using this patch for about 5 versions of 2.5 so far. I haven't done heavy testing myself, just booting and doing some other testing of modules and drivers. I am running the DAC960 on my root/boot filesystem and haven't seen any problems yet.
thank you. i`ll join the 2.5 DAC user crowd soon then :-)
---
regards,
Samium Gromoff
_____________________________________-
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Quoted 3 lines
Let me know if you find any problems at all. I'll try to address them.
Actually the thing (DAC960-PL, one ibm 10k rpm drive) just booted up and
worked like a charm. Indeed its not a hardcore setup, yet im happy anyway :-)
Although i`ll keep running 2.4 until alsa isapnp breakage will get fixed up.
Anyhow thank you for the finally working driver which finally enabled me
to check bloody 2.5 at home :-)
regards, Samium Gromoff
Monitor utility (was Re: DAC960 at 2.5.50)
In reply to Dave OlienDave, all,
Did you know about the DAC960 monitor utility? I just ran across it
in the SuSE install set. It's available from
http://varmon.sourceforge.net/
Looks like it's not being maintained anymore (and probably won't work with the 2.5 driver yet?)
Signature · 1 line
Kevin
Quoted 37 lines · Dave Olien
Let me know if you find any problems at all. I'll try to address them.
I think the biggest "imperfection" is just the coding style of the whole driver. I might submit some patches over time to clean up coding style.
The next problem is that it doesn't handle media errors yet. If you have a read or write failure because a sector on your disk is bad, it fails the entire read or write. With all the coalescing of requests that the block layer does, this might fail ALL of a really large transfer just because one sector is bad.
I'm working on a patch that retries failures section at a time, so that the failure will be more closely limited to the sector that is bad.
Quoted 16 lines · Samium Gromoff
Quoted 11 lines
Samium Gromoff...
Quoted 5 lines
Quoted 4 lines
<[email protected]>
[PATCH] update to OSDL DAC960 driverIts not perfect but it works
is it supposed to blow my data, or is it relatively safe to use?
There have been a few poeple using this patch for about 5 versions of 2.5 so far. I haven't done heavy testing myself, just booting and doing some other testing of modules and drivers. I am running the DAC960 on my root/boot filesystem and haven't seen any problems yet.
thank you. i`ll join the 2.5 DAC user crowd soon then :-)
---
regards,
Samium Gromoff
Re: Monitor utility (was Re: DAC960 at 2.5.50)
Quoted 7 lines
Dave, all,
Did you know about the DAC960 monitor utility? I just ran across it
in the SuSE install set. It's available from
http://varmon.sourceforge.net/Looks like it's not being maintained anymore (and probably won't work with the 2.5 driver yet?)
i`m volunteering to test it as soon as its ported
Quoted 3 lines
--
Kevin
regards, Samium Gromoff
Re: Monitor utility (was Re: DAC960 at 2.5.50)
On Thu, 5 Dec 2002, Samium Gromoff wrote:
| > Dave, all, | > Did you know about the DAC960 monitor utility? I just ran across it | > in the SuSE install set. It's available from | > http://varmon.sourceforge.net/ | > | > Looks like it's not being maintained anymore (and probably won't work | > with the 2.5 driver yet?) | i`m volunteering to test it as soon as its ported
Did anyone volunteer to update it?
Looks like a good idea...
Signature · 1 line
~Randy
Re: Monitor utility (was Re: DAC960 at 2.5.50)
In reply to Kevin BrosiusI hadn't seen it before. I'll grab it and give it a look. I'm assuming it uses ioctl() calls to do its dirty work. In that case, it should mostly still work. I might have broken something around the edges. I also observed some races in the driver between its ioctl() functions and some timer-driven health monitoring functions that concerned me. I'll look those over again more carefully.
Give me a day or so, and I'll let you know how things look.
I've heard of something Mylex provides called "global array manager" that runs on Linux. But, I think it requires a graphical front end on a windows box. I don't think it's open source either. I'll look it over as a second priority after this one.
Dave
Quoted 55 lines · Kevin Brosius
Dave, all,
Did you know about the DAC960 monitor utility? I just ran across it
in the SuSE install set. It's available from
http://varmon.sourceforge.net/Looks like it's not being maintained anymore (and probably won't work with the 2.5 driver yet?)
Signature · 1 line
KevinQuoted 16 lines · Dave Olien
Let me know if you find any problems at all. I'll try to address them.
I think the biggest "imperfection" is just the coding style of the whole driver. I might submit some patches over time to clean up coding style.
The next problem is that it doesn't handle media errors yet. If you have a read or write failure because a sector on your disk is bad, it fails the entire read or write. With all the coalescing of requests that the block layer does, this might fail ALL of a really large transfer just because one sector is bad.
Quoted 21 lines
I'm working on a patch that retries failures section at a time, so that the failure will be more closely limited to the sector that is bad.
Quoted 16 lines · Samium Gromoff
Quoted 11 lines
Samium Gromoff...
Quoted 5 lines
Quoted 4 lines
<[email protected]>
[PATCH] update to OSDL DAC960 driverIts not perfect but it works
is it supposed to blow my data, or is it relatively safe to use?
There have been a few poeple using this patch for about 5 versions of 2.5 so far. I haven't done heavy testing myself, just booting and doing some other testing of modules and drivers. I am running the DAC960 on my root/boot filesystem and haven't seen any problems yet.
thank you. i`ll join the 2.5 DAC user crowd soon then :-)
---
regards,
Samium Gromoff-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Re: Monitor utility (was Re: DAC960 at 2.5.50)
On Thu, 5 Dec 2002, Dave Olien wrote:
....
Quoted 9 lines
I've heard of something Mylex provides called "global array manager" that runs on Linux. But, I think it requires a graphical front end on a windows box. I don't think it's open source either. I'll look it over as a second priority after this one.
Dave
Hi Dave
Yes, their software its pretty cool and its the only choice for using some of the features of the DAC960 (ex. MORE, setting queue tag len for single hdd, write-back cache for logical and physical drives, very nice event viewer, full SNMP variables exporting). They provide native linux drivers/server and win32 client (inside a rpm and using wine to start itself). Except for some minor visual problems the GAM client works pretty well with wine.
I sugest you to try it out.
----------------------------
Mihai RUSU
Disclaimer: Any views or opinions presented within this e-mail are solely those of the author and do not necessarily represent those of any company, unless otherwise specifically stated.
Re: Monitor utility (was Re: DAC960 at 2.5.50)
Thanks, I'll give it a try!
I was just playing with varmon.
It's OK. It seems to do the same set of things that I can do through the /proc/rd/c0/user_command interface. I can take drives offline, put them back online, make drives standby, do consistency checks.
But, I can't delete or create logical devices, I'm forced to do that through the Mylex BIOS during system boot.
I've not given a lot of thought to where those restrictions come from. Certainly part of the problem is a lack of specifications for Mylex.
It'd be really nice of global array manager could do these things.
I'll give it a try.
Quoted 31 lines · Mihai RUSU
On Thu, 5 Dec 2002, Dave Olien wrote:
....
Quoted 9 lines
I've heard of something Mylex provides called "global array manager" that runs on Linux. But, I think it requires a graphical front end on a windows box. I don't think it's open source either. I'll look it over as a second priority after this one.
Dave
Hi Dave
Yes, their software its pretty cool and its the only choice for using some of the features of the DAC960 (ex. MORE, setting queue tag len for single hdd, write-back cache for logical and physical drives, very nice event viewer, full SNMP variables exporting). They provide native linux
drivers/serverand win32 client (inside a rpm and using wine to start itself). Except for some minor visual problems the GAM client works pretty well with wine.I sugest you to try it out.
----------------------------
Mihai RUSUDisclaimer: Any views or opinions presented within this e-mail are solely those of the author and do not necessarily represent those of any company, unless otherwise specifically stated.